diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-17 21:48:37 +0400 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-23 09:55:19 +0400 |
commit | 8569c9140bd41089f9b6be8837ca421102714a90 (patch) | |
tree | cd289b322b215fe2ca2530aa320febfd99388d7f /arch/um/include/shared/sysdep-x86_64/barrier.h | |
parent | 2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff) | |
download | linux-8569c9140bd41089f9b6be8837ca421102714a90.tar.xz |
x86, um: take arch/um/include/* out of the way
We can't just plop asm/* into it - userland helpers are built with it
in search path and seeing asm/* show up there suddenly would be a bad
idea.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/um/include/shared/sysdep-x86_64/barrier.h')
-rw-r--r-- | arch/um/include/shared/sysdep-x86_64/barrier.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/um/include/shared/sysdep-x86_64/barrier.h b/arch/um/include/shared/sysdep-x86_64/barrier.h new file mode 100644 index 000000000000..7b610befdc8f --- /dev/null +++ b/arch/um/include/shared/sysdep-x86_64/barrier.h @@ -0,0 +1,7 @@ +#ifndef __SYSDEP_X86_64_BARRIER_H +#define __SYSDEP_X86_64_BARRIER_H + +/* Copied from include/asm-x86_64 for use by userspace. */ +#define mb() asm volatile("mfence":::"memory") + +#endif |